Feature: Access conversations with deactivated users

[TomerPacific]

Summary

This pull request includes changes to the source/collaborate/channel-types.rst file to improve the clarity and structure of the documentation for direct and group messages. The key changes involve replacing .. tip:: with .. note:: and adding information about message history with deactivated users.

Ticket Link

Resolves #7425

[mattermost-build]

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[github-actions]

Newest code from TomerPacific has been published to preview environment for Git SHA c3390e1

[github-actions]

Newest code from TomerPacific has been published to preview environment for Git SHA fae2b75

[cwarnermm]

Thanks, @TomerPacific!

[Rutam21]

@lindy65 Please assign this PR to me for QA Testing. Thanks.

[lindy65]

Thanks, assigned to you @Rutam21

[github-actions]

Newest code from TomerPacific has been published to preview environment for Git SHA d9b5cbb

[Rutam21]

The changes in this PR have been tested in the preview environment and all the required changes are available in the mentioned pages.

• The Direct Messages and Group Messages Note sections contain a new bullet point with the required information.
• The link in the text unless your system admin disables your ability to do so for that specific bullet point is working fine and points to the correct place in the Docs.

I've attached a video as a confirmation.

PR-7475.QA.Testing.mp4

cc: @lindy65

[lindy65]

Thank you @Rutam21 - counted towards Hacktoberfest!

cc @cwarnermm